package com.ruoyi.common.utils;

import java.util.Collection;
import java.util.List;
import java.util.stream.Collectors;

import com.alibaba.fastjson2.JSON;
import com.ruoyi.common.constant.CacheConstants;
import com.ruoyi.common.core.domain.model.LoginUnitfUser;
import com.ruoyi.common.core.redis.RedisCache;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.stereotype.Component;
import org.springframework.util.PatternMatchUtils;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.constant.HttpStatus;
import com.ruoyi.common.core.domain.entity.SysRole;
import com.ruoyi.common.core.domain.model.LoginUser;
import com.ruoyi.common.exception.ServiceException;

import javax.servlet.http.HttpServletRequest;

import static com.ruoyi.common.utils.ServletUtils.getRequest;
import static com.ruoyi.common.utils.ServletUtils.getRequestAttributes;

/**
 * 安全服务工具类
 *
 * @author ruoyi
 */
@Component
public class SecurityUtils
{

    @Autowired
    private static RedisCache redisCache;


    @Autowired
    public SecurityUtils(RedisCache redisUtils){
        SecurityUtils.redisCache = redisUtils;
    }

    /**
     * 用户ID
     **/
    public static Long getUserId()
    {
        try
        {
            return getLoginUser().getUserId();
        }
        catch (Exception e)
        {
            throw new ServiceException("获取用户ID异常", HttpStatus.UNAUTHORIZED);
        }
    }

    /**
     * 获取部门ID
     **/
    public static Long getDeptId()
    {
        try
        {
            return getLoginUser().getDeptId();
        }
        catch (Exception e)
        {
            throw new ServiceException("获取部门ID异常", HttpStatus.UNAUTHORIZED);
        }
    }

    /**
     * 获取用户账户
     **/
    public static String getUsername()
    {
        try
        {
            return getLoginUser().getUsername();
        }
        catch (Exception e)
        {
            throw new ServiceException("获取用户账户异常", HttpStatus.UNAUTHORIZED);
        }
    }

    /**
     * 获取临时token用户
     **/
    public static LoginUnitfUser getLoginTempUser(String tempToken)
    {
        try
        {
            String userKey = CacheConstants.TEMP_TOKEN + tempToken;
            String jsonObject = redisCache.getCacheObject(userKey);
            LoginUnitfUser json = JSON.parseObject(jsonObject, LoginUnitfUser.class);
            return json;
        }
        catch (Exception e)
        {
            e.printStackTrace();
            throw new ServiceException("获取统一门户用户信息异常", HttpStatus.UNAUTHORIZED);
        }
    }

    /**
     * 获取用户
     **/
    public static LoginUnitfUser getLoginUser()
    {
            try
            {
                HttpServletRequest request = getRequest();
                String token = request.getParameter(CacheConstants.TOKEN);
                if (org.apache.commons.lang3.StringUtils.isEmpty(token)) {
                    token = request.getHeader(CacheConstants.TOKEN);
                }
                String userKey = getTokenKey(token);
                String jsonObject = redisCache.getCacheObject(userKey);
                LoginUnitfUser json = JSON.parseObject(jsonObject, LoginUnitfUser.class);
                return json;
            }
            catch (Exception e)
            {
                e.printStackTrace();
                throw new ServiceException("获取统一门户用户信息异常", HttpStatus.UNAUTHORIZED);
            }
    }


    /**
     * 获取request
     */
    public static HttpServletRequest getRequest()
    {
        return getRequestAttributes().getRequest();
    }

    private static String getTokenKey(String uuid)
    {
        return CacheConstants.LOGIN_UNITF_TOKEN_KEY + uuid;
    }


    /**
     * 获取Authentication
     */
    public static Authentication getAuthentication()
    {
        return SecurityContextHolder.getContext().getAuthentication();
    }

    /**
     * 生成BCryptPasswordEncoder密码
     *
     * @param password 密码
     * @return 加密字符串
     */
    public static String encryptPassword(String password)
    {
        BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
        return passwordEncoder.encode(password);
    }

    /**
     * 判断密码是否相同
     *
     * @param rawPassword 真实密码
     * @param encodedPassword 加密后字符
     * @return 结果
     */
    public static boolean matchesPassword(String rawPassword, String encodedPassword)
    {
        BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
        return passwordEncoder.matches(rawPassword, encodedPassword);
    }


    /**
     * 验证用户是否具备某权限
     *
     * @param permission 权限字符串
     * @return 用户是否具备某权限
     */
    public static boolean hasPermi(String permission)
    {
        return hasPermi(getLoginUser().getPermissions(), permission);
    }

    /**
     * 判断是否包含权限
     *
     * @param authorities 权限列表
     * @param permission 权限字符串
     * @return 用户是否具备某权限
     */
    public static boolean hasPermi(Collection<String> authorities, String permission)
    {
        return authorities.stream().filter(StringUtils::hasText)
                .anyMatch(x -> Constants.ALL_PERMISSION.equals(x) || PatternMatchUtils.simpleMatch(x, permission));
    }

    /**
     * 验证用户是否拥有某个角色
     *
     * @param role 角色标识
     * @return 用户是否具备某角色
     */
    public static boolean hasRole(String role)
    {
        List<SysRole> roleList = getLoginUser().getUser().getRoles();
        Collection<String> roles = roleList.stream().map(SysRole::getRoleKey).collect(Collectors.toSet());
        return hasRole(roles, role);
    }

    /**
     * 判断是否包含角色
     *
     * @param roles 角色列表
     * @param role 角色
     * @return 用户是否具备某角色权限
     */
    public static boolean hasRole(Collection<String> roles, String role)
    {
        return roles.stream().filter(StringUtils::hasText)
                .anyMatch(x -> Constants.SUPER_ADMIN.equals(x) || PatternMatchUtils.simpleMatch(x, role));
    }

}
